LXR linux/arch/arm/mach-footbridge/netwinder-pci.c

   1/*
   2 * linux/arch/arm/mach-footbridge/netwinder-pci.c
   3 *
   4 * PCI bios-type initialisation for PCI machines
   5 *
   6 * Bits taken from various places.
   7 */
   8#include <linux/kernel.h>
   9#include <linux/pci.h>
  10#include <linux/init.h>
  11
  12#include <asm/irq.h>
  13#include <asm/mach/pci.h>
  14#include <asm/mach-types.h>
  15
  16/*
  17 * We now use the slot ID instead of the device identifiers to select
  18 * which interrupt is routed where.
  19 */
  20static int __init netwinder_map_irq(struct pci_dev *dev, u8 slot, u8 pin)
  21{
  22        switch (slot) {
  23        case 0:  /* host bridge */
  24                return 0;
  25
  26        case 9:  /* CyberPro */
  27                return IRQ_NETWINDER_VGA;
  28
  29        case 10: /* DC21143 */
  30                return IRQ_NETWINDER_ETHER100;
  31
  32        case 12: /* Winbond 553 */
  33                return IRQ_ISA_HARDDISK1;
  34
  35        case 13: /* Winbond 89C940F */
  36                return IRQ_NETWINDER_ETHER10;
  37
  38        default:
  39                printk(KERN_ERR "PCI: unknown device in slot %s\n",
  40                        pci_name(dev));
  41                return 0;
  42        }
  43}
  44
  45static struct hw_pci netwinder_pci __initdata = {
  46        .swizzle                = pci_std_swizzle,
  47        .map_irq                = netwinder_map_irq,
  48        .nr_controllers         = 1,
  49        .setup                  = dc21285_setup,
  50        .scan                   = dc21285_scan_bus,
  51        .preinit                = dc21285_preinit,
  52        .postinit               = dc21285_postinit,
  53};
  54
  55static int __init netwinder_pci_init(void)
  56{
  57        if (machine_is_netwinder())
  58                pci_common_init(&netwinder_pci);
  59        return 0;
  60}
  61
  62subsys_initcall(netwinder_pci_init);
  63